/**
 * 
 */
package liyasong.util;

/**
 * @author tracl01
 *
 */
import java.io.PrintStream;

public class Print {
	public static void print(Object obj) {
		System.out.println(obj);
	}
	
	public static void print() {
		System.out.println();
	}
	
	public static void printnb(Object obj) {
		System.out.print(obj);
	}
	//这定义成返回值，是何意呢？
	public PrintStream printf(String format, Object... args) {	//这里的语法很新鲜，指可以传递任意个
		return System.out.printf(format, args);
	}
}
